Search found 55 matches

I have made up a scheme to implement what M. Ganssle explains in the article and it looks like this.

wdt_a(){
state+=0x1111;
if(state!=0x2222) reset_cpu();
& ...

Thanks a lot for all these pointers, but does reset_cpu() in PCD compiler
put all registers into a reset state? thx

AC
---------

Ttelmah hi, ok how to manage that a rogue program will issue a WDT timeout ? This is what we are taking about here, but the art of the watchdog lies in ability to place the restart_wdt at less possibl ...

Yes i know about the array index but in my case its not this. I am sure because i took the block of code and moved it and it solved the problem. I think its ROM corruption not RAM even if it looks lik ...

Hi,

I would like to know if CCS has some built in functions that i could use to secure embedded software, by that i mean ROM and RAM tests, errant code recovery etc.

I use the wdt but this a ...

Hi,

I am making a hydronic controller that controls fifteen temperature zones. Usually I don't need the forum but every time I used it I was very happy.

My problem is that my float array c ...

Thanks PCM i will look up on these links. I read in a book from Jack Ganssle
that this could be something to consider, but you are right AsmBoy the WDT
is especially the windowed version on the PIC2 ...

Hi,

I want to fill unused program memory with a goto command in case
the program jumps to a random place in program memory where nothing
exist and this goto could trigger a reset. Is this g ...

In my case i only need to store maybe 40 bytes of datum and it's data that
changes very rarely so program memory is a good choice, but is it considered safe practice, what if some sporadic jump to t ...

i imported the program into MPLAB and opened program memory window, i noticed that the program goes until address 0x279C on the pic18f46j11 part,
but i will be adding much more stuff on this controll ...

There is write_program_memory and read_program_memory, i guess this
is used for that, but how to know where (address) to store variables that need to keep there values even thru power cycles. thx

...

Hi, i making a logger using pic18f46j11 that doesn't have EEPROM, is it possible to write to flash at runtime a variable, say PresetTemperature for example and then if a reset occurs read the values b ...

What value crystal are you using and does the errors occur in sequence or all over the received stream of data?

Thank to all, yes it was an array declared at the top of main declaration that was too short, instead of 31 elements I made it 63 elements wide and it solved the problem. You guys are the best.

Reg ...

Ok good thinking this is logical i will investigate this. Should vars that are only changed in main be declared there or in global section?